A new article featured in Circuit Cellar

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February 2024, #403 issue of Circuit Cellar magazine features an article I wrote about Raspberry Pi Pico Programmable I/O Programming. It is an elusive topic, opening up many choices to speed up communications with many different types of hardware. Writing the article was my excuse to devote myself to learning the subject, as I might end up using it for an upcoming wireless controller for a biaxial test machine I published last year. 

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